213881871

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 351267840

約数和(自身を除く): 137385969

約数列:

[1, 3, 7, 21, 41, 43, 53, 109, 123, 129, 159, 287, 301, 327, 371, 763, 861, 903, 1113, 1763, 2173, 2279, 2289, 4469, 4687, 5289, 5777, 6519, 6837, 12341, 13407, 14061, 15211, 15953, 17331, 31283, 32809, 37023, 40439, 45633, 47859, 93439, 93849, 98427, 121317, 192167, 236857, 248411, 280317, 576501, 654073, 710571, 745233, 1345169, 1657999, 1738877, 1962219, 4035507, 4973997, 5216631, 10184851, 30554553, 71293957, 213881871]

約数ペア:

[(1, 213881871), (3, 71293957), (7, 30554553), (21, 10184851), (41, 5216631), (43, 4973997), (53, 4035507), (109, 1962219), (123, 1738877), (129, 1657999), (159, 1345169), (287, 745233), (301, 710571), (327, 654073), (371, 576501), (763, 280317), (861, 248411), (903, 236857), (1113, 192167), (1763, 121317), (2173, 98427), (2279, 93849), (2289, 93439), (4469, 47859), (4687, 45633), (5289, 40439), (5777, 37023), (6519, 32809), (6837, 31283), (12341, 17331), (13407, 15953), (14061, 15211)]